A colony does give you a Glory when Active, and that Glory is then taken away if something makes the colony go Inactive. Colonies are not made inactive each Winter, to my current understanding, so you will not continue to gain Glory each Winter. It is most similar to Buildings, in terms of how the Glory gain/loss is handled.

You only activate the colony (up to) once during each game, and gain the +1 glory when you do so.

(Rule 21 spoiler (later box, maybe Box 4?))

Spoiler (click to reveal)

And if you lose the colony, you lose the glory you got for it. This is a lot like the rules for structures: you gain glory for building the structure, and if you lose the structure, you lose the glory.

And if you lose the colony, you lose the glory you got for it. This is a lot like the rules for structures: you gain glory for building the structure, and if you lose the structure, you lose the glory.

You only activate the colony (up to) once during each game, and gain the +1 glory when you do so.

(Rule 21 spoiler (later box, maybe Box 4?))

Spoiler (click to reveal)

And if you lose the colony, you lose the glory you got for it. This is a lot like the rules for structures: you gain glory for building the structure, and if you lose the structure, you lose the glory.

While that is a reasonable rule, I can't find it in the rulebook. Do you know where it says explicitly that it is lost in this circumstance?

If you're looking for an explicit rule, you aren't going to find it. However, common sense and a survey of the rules should make you realize that in every case in SeaFall, if a thing has a glory value inherent to it, then gaining that thing gains you the glory it's worth, and losing that thing causes you to lose the glory it's worth.

(Box 2-3 spoiler)

Spoiler (click to reveal)

If you want to be very technical, there is also nothing in the rules that explicitly states that you gain a glory for having an active colony; the rules only state that "an active colony is worth one glory".